var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var ejs = require('ejs');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
const cors = require('cors');


var app = express();

app.use(express.json()); // 用于解析application/json  
app.use(express.urlencoded({ extended: true }));

app.use(cors({
  origin: true, // 允许携带凭据的请求  
  credentials: true // 注意：前端请求也需要设置 withCredentials: true  
}));
// view engine setup
// app.set('views', path.join(__dirname, 'views'));
app.use(express.static(path.join(__dirname, 'dist')));
app.engine('.html', ejs.__express);
app.set('view engine', 'html');

app.use(logger('dev'));
app.use(cookieParser());
// app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', usersRouter);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});


module.exports = app;
